Display Window Light-Shielding Member Protection Layer
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Solution Overview
Problem
Existing display apparatuses face challenges in preventing damage to light-shielding members during separation from the display panel, leading to potential breakage and increased manufacturing costs, as well as difficulties in removing leaked adhesion layers and foreign substances from these members.
Innovation Solution
Incorporating a light-shielding member protection layer made of fluorine-based or carbon-based materials between the light-shielding member and the adhesion layer, with an oxide layer between the protection layer and the light-shielding member, to enhance adhesion and prevent damage during separation, and forming an anti-finger layer on the window's surface to facilitate easy removal of foreign substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the adhesion layer is used to bond the display panel and window, then strong adhesion is achieved, but the light-shielding member is damaged during separation
Solution Approach 1:
A light-shielding member protection layer is introduced as an intermediary between the light-shielding member and the adhesion layer. This protection layer prevents direct contact between the adhesion layer and the light-shielding member during separation, thereby preventing damage to the light-shielding member while maintaining strong adhesion between the display panel and window through the adhesion layer.
2Ease of manufacture
If the adhesion layer is applied directly to the light-shielding member, then bonding is achieved, but leaked adhesion layer and foreign substances are difficult to remove
Solution Approach 1:
The light-shielding member protection layer serves as an intermediary surface that receives the adhesion layer. When contamination occurs, the protection layer can be cleaned without damaging the underlying light-shielding member. The protection layer's material properties (fluorine-based or carbon-based) facilitate easy removal of leaked adhesion layer and foreign substances through conventional cleaning methods.
3Adaptability or versatility
If the window and display panel are separated for rework, then misalignment issues can be corrected, but the light-shielding member breaks due to adhesion layer damage
Solution Approach 1:
The protection layer enables safe separation of the window and display panel by preventing the adhesion layer from directly bonding to the light-shielding member. During rework or misalignment correction, the window can be separated and reattached without risking breakage of the light-shielding member, thereby improving rework capability while maintaining structural integrity.
4Device complexity
If no protection layer is used, then device complexity is reduced, but manufacturing precision and component protection are compromised
Solution Approach 1:
A thin film protection layer made of fluorine-based or carbon-based materials is applied over the light-shielding member. This thin film provides adequate protection during manufacturing and separation processes while adding minimal complexity to the overall device structure. The thin film nature allows it to conform to the light-shielding member geometry without requiring additional structural support.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for the safe reuse of the window by preventing damage to the light-shielding member during separation and simplifies the removal of leaked adhesion layers and foreign substances, reducing manufacturing costs and improving the efficiency of the display apparatus assembly process.
Implementation Method 1
an oxide layer between the light-shielding member protection layer and the light-shielding member. The oxide layer may be formed of a material including at least one of SiO2 and TiO2
Implementation Method 2
adhesion between the light-shielding member protection layer and the light-shielding member may be greater than adhesion between the light-shielding member protection layer and the adhesion layer
Data Source
AI summary
A display apparatus has a display panel that includes a display area and a boundary area, a window that protects the display panel and that transmits an image that is realized in the display area, and an adhesion layer that adheres the display panel and the window. The window includes a window body with a first surface that faces the display panel and a second surface that is externally exposed, a light-shielding member that is on the first surface and that blocks the boundary area of the display panel from being externally visible, and a light-shielding member protection layer that is between the light-shielding member and the adhesion layer, and that protects the light-shielding member.